<script setup>
let nunmbers = [1, 2, 3];
console.log(...nunmbers);
import { ref, computed } from "vue";
const item = ref("");
const item_length = computed(() => item.value.length);
</script>
<template>
  <h1>Hello world</h1>
  <br />
  <input type="text" v-model="item" />
  <br />
  <p>{{ item_length }}/200</p>
</template>